Packet forming machine



Jan. 12, 1932. u-:5 1,840,440

PACKET FORMIfiG MACHINE Filed Oct. 14, 1929 3 Sheets-Sheet 1 s day m9? M l Jan. 12, F LES 1,840,440

PACKET FORMING MACHINE Filed Oct. 14, 1929 3 Sheets-Sheet 2 1831,12, 1932. HLES 1,840,440

PACKET FORMING MACHINE Filed Oct. 14, 1929 3 Shets-Sheet 3 gwwmtw abtouwq Patented Jan. 1932 UNITED STATES anmo I. sites, or mum, 0x10 PACKET FORMING MACHINE Applicationi am October 14,4929. Serial no. seam.

My invention has for its object to provide ..cated in Fig. 1. Fig. 6 is a side view of a an eflicient packet forming machine where in strips of materials are joined together, waterproofed, and then cut at desired points to form separated packages or bags, subsequent to the insertion of the material dispensed by the machine. The invention particularly provides an improved machine for coating the exterior surface of the enclosing sheet material of which the packet is formed with a water proof material, and wherein impregnation of the waterproof material is regulated to'insure only surface coating, preventing penetration to the inner surface of the sheet material, which mighti, otherwise have deleterious effects upon material contained within the packets, and also for the application to the waterproofed packets of a neutralizing agent for preventing adherence of the packets one to the other by reason of the adhesive quality of the waterproof surface coating material that would otherwise occur during the handling of a number of packets and, particularly,where the same are packed together in large numbers in containers for the purpose of shipping.

The invention may be contained in dispensing and. packet forming machines that vary in their details of construction and, to illustrate a practical application of the in ventioml have selected an improved packet forming machine as an example of the construction containing my invention, and shall describe the parts thereof embodying my invention hereinafter. The parts of the machine containing my invention are illustrated in the accompanying drawings.

Figs. 1 and 2 illustrate the top view of the part of the machine containing my invention, the views being continuous, one of the other. Fig. 1 illustrates the mechanism for dipping the strips and Fig. 2 illustrates the means for covering the strips with a material that prevents the adherence of the packets when they are finally formed. Fig. 3 is a view of a section taken on the plane of the line 3 3 indicated in Fig. 1. Fig. 4 is a side view of the part of the machine illustrated in Fig. 1. Fig. 5 is a view of a section taken on the plane of the line 5-5 indipart of. the machine illustrated in Fig. 2. Fig. 7 is a view of a section taken on the lane of the line 7-7 indicated in Fig. 2. ig. 8

is a view of the side of the machine oppositeto that shown in Fig. 6 and shows a side view of the end of the part of the machine illustrated in Fig. 1 and on the side opposite to that shown in Fig. 4:.

The machine is provided with a frame 1. A suitable source of power is provided for driving the gear wheel'2, which is pivotally supported on the frame. A strip of sheet material 7, such as paper, is continuously fed from a suitable roll of sheet material beneath a suitable hopper or other supply means, which delivers such'quantitiesof the material that is to be enclosed in the packets formed by the machine upon the strip; and

a second strip supplied from a suitable roll of sheet material, on which may be printed suitable material, striped with glue, along the desired outlines or contours, in order to surround the contents of the packets and eventually seal the edges of the packets. In order to press the glued portions in the outline of the final packets or envelopes, the pairs of strips containing separated portions of the material dispensed are passed beneath the roller 5 which is provided with any desirable raised outline facing 6, the outline of which corresponds to the shape of the edge of the packet. Thus the packets, or envelopes, may

e of a square, diamond, or circular outline, or partake of any of the features of a combination of these outlines. The raised face 6 operates to press the strips together at separated points in order to seal them.

The stri s 7 thus secured in the outlines of the finis ed packets pass over a heater or shaker bar 20 that is rotated at a high speed by the electric motor 21 to which it is connected at one end, and the other end is sunk in the frame 1, being free to rotate therein. The heater bar 20 has a substantially elliptical shape in cross section of its body portion 'bar is rotated by the operation of an electric motor 21. This produces a vibratory movement of the contiguous portions of the strips of packets containing the material that is dispensed by the machine. The subdivided packeted strips are pressed against the beater by the tension induced by the drawing rollers and the rotation of the beater causes the strips to rapidly rise and fall which loosens the material and causesit to spread within the packets as they are drawn over the beater. The material being mobile within the packets will distribute itself uniformly over the interior surfaces and thus present to the pressure rolls of the machine a packet thickness that is uniform. Consequently, when the packet is subject to pressure of one of the rolls, uniform and limited penetration of the waterproof material will be insured.

The connected strips 7 are then directed into a vat 8'contain1n the Waterproofing coating, such as paraihn. They pass beneath a roller 9 which is rotatably mounted in a bracket 10. The bracket 10 is adjustably secured to a dove-tailed standard 11 that is connected to the frame 1 of the machine. The bracket 10, and consequently the roller 9, can be adjusted with reference to the level 13 of the paratlin located Within the vat 8 by rotating the screw 14. Thus, the connected strips 7 may be regulated so as to dip just below the 'levelof the parafiin contained in the vat. In order to maintain the temperature of the parafiin at a point that will prevent its liquefaction to a degree that will cause its penetration into the material of the strips 7, the paraffin is heated by means a of an electric heater 16, the flow of the current through the heater 16 being regulated by a suitable rheostat 15. The temperature of the paraffin is thus kept at such a point that it will merely coat the surface of the strips. r

The strips 7 then pass between the hollow roll 17 and the roll 18 at a point above the level 13 of the arafiin in the vat 8. A heater is located within the hollow roll 17. The temperature of the heater within the roll 17 is regulated by means of a rheostat 19 to cause slight impregnation of the paraffin that is collected by the movement of the strips 7 through the vat 8 and to insure its entrance into all of the pores of the paper without ensame temperature.

trance to the inner surface of the packets. The proximity of the roll 17 with the roll 18 keeps the two rolls at substantially the Furthermore, the rolls 17 and 18, being formed of metal, and being so located as to press all parts of the exterior surface of the combined strips 7, they operate as spreading rolls to distribute the parafiin over all the exterior surface of the strips, forcing aslight penetration of all the pores of the strips, and forming a smooth uniform Waterproof exterior surface on the strips.

The rolls 17 and 18 are driven by means of the gear wheels 2 and 23. The rotation of the usted with reference to the level 26 of the.

water in the vat by means of the screw 31, which extends through a part'of the bracket 29 and is rotatably'secured in part of the standard 30. The water operates to chill the paraffin and prevent a continued penetration of the paraflin to the inner surfaces of the strips 7.

The strips 7 then pass between the rolls and 36 and the rolls 37 and 38 which are driven by the chain of gear wheels 39. The

gear wheels 39 are rotated by means of the sprocket wheel 40 and the sprocket chain 41 which may be connected to a sprocket wheel which may be keyed to the gear wheel 2. The pressure between the pa'ir of rolls 35 and 36 is regulated by the screws 42 which are threaded in the frame 1 of the machine and are adapted to press against journal boxes 43 which are cushioningly held in the frame 1 by springs 47 and form the bearings of the upper roll 35. The rolls 37 and 38 are also adjusted in their pressure upon the strip 7 by means of the screws/15 which are threaded in the frame 1 of the machine and are ada ted to press against the journal boxes 46 which are spring held by springs 48 located in the frame 1 and in which the roll 37 is rotatably supported.

Intermediate the pairs of rolls 35 and 36 and 37 and 38, is located a duster 50 for dusting a powder over the upper surfaces of the combined strips 7. The cluster 50 is provided with a container 51 in which a pulverulent material 52, such as talcum powder or other material, is located that will prevent the adherence of the waterproofing material covering the adjoining faces of the packets when they are finally formed and assembled in containers for shipping purposes.

The container 51 is provided with openings 53 through which the pulverulent material 52 will sift by reason of the constant vibration due to the operation of the machine and fall upon the strips 7. If desired, a ratchet 57 may be connected to the roller 35 and rotated therewith. The ratchet 57 is provided with laterally extending teeth that are adapted to engage a'lever 58 that is pivotally supported by means of the pin 59 to a part of the frame 1. A spring 91 is connected to the lever 58 and to the frame 1 and operates to main tain a pendent part 92 of the lever 58 against the teeth of the ratchet 57. The lever 58 has one end ,93 in position to strike against the lower end of the container 51 and jar the contents of the container to cause the pulverulent material 52 to work through the openings 53. Thus, in the operation of the rollers, the container 51 is continuously jarred, or shaken, to cause the pnlverulent material to pass through the openings 53 and fall upon the strips 7. In order to uniformly distribute the material over the upper surface of the strips 7 a brush 54: is afixed just behind the openings 53 so that its end will rub upon the upper surface of the combined strips 7 and operate to rub or brush the pulverulent material over the surface of the water-proofing material so as to completely cover the surface of the parafin. Thus, when the packets are finally formed, the water-proofingmaterial of adjoining sides of adjoining packets will be separated by a coating of a pulverulent material which will prevent their adherence to each other. v

The combined strips 7 then pass to a cutter 55 where they are severed along the glued outlines to form the ends of separate packets, each of which contain a small portion'of the material dispensed by the machine. The rotative knife 55 is driven by means of the gear wheels 56 which are meshed together one of which being connected to the end of the shaft of the roll 38. As the strips 7 are severed to form the packets, they are delivered to the belt 60 which is moved to convey the packets by means of a step mechanism that is driven by a pinion 61 which meshes with one of the gear wheels 56. A link 62 is connected to the pinion 61 which causes reciprocatory movements of the link 62 and oscillatory movements of the lever 63 to which the link is connected. .The lever 63 has an arm 64 that is pivotall connected to a rod 65 having a hooked en 66 that engages a ratchet wheel 69. When the arm 64 is oscillated, the

rod 65 is reciprocated to cause intermittent movement of the ratchet wheel 69. The ratchet wheel 69 is secured to the shaft 71 so that its rotation is' imparted to a pin wheel which is also connected to the shaft 71. A plurality of pins 72 are located in spaced relation on the outer surface of the pin wheel 70 so as to engage the end of a lever 73. The lever 73 is pivotally supported on an arm 74 by a pin 75 and is provided with a slot 1 76 for location of the pin 77 in one of the holes 78 located in the arm 74. The pin 77 and the holes 78 allow slight changes in the angular relation of the lever and the arm. The lever 73 is also provided with an arcuate slot or opening 80 for the end of the shaft 81 upon which the arm 7 4 is located. As the ratchet wheel 69 causes rotation of the pin .wheel 7 0, one of the pins 72 operates to move The intermittent rotation of the pin wheel 70 continues to force the end of the lever 73- a short rotatlve movement of the s aft 81 through the ratchet 89. The belt 80 is located on a pulley wheel supported on the shaft 81 and, consequently, during intermittent periods, the belt 60 is moved short distances by the operation of the pin wheel 70 and the interconnecting mechanism, which will provide room for an additional number of pockets as they are delivered to the belt 60.

I claim:

1. In a packet forming machine, an adjustable means for dipping the packets in a wax-like material, a pair of metal rolls, an electric heater :for 'heatin the rolls, and mains for directing the pa lrets between the ro s.

2. In a machine for forming packets from strips, a container for a moisture roofing material, an ad ustable roller for irecting the strips into t e wax-like material, a pair of pressure metal rolls, an electric heater for heating the rolls and heat treating the exterior surfaces of the coated stri pairs of pressure rolls for engaging the strips, a container for a pulverulent material and a'brush located below the container for the pulverulent material. for brushing pulverulent material over the surface of the united strips as the strips move between the pressure rolls, and a knife for severing the strips into packets.

v 3. In a packet forming machine, a rotatable bar, elliptical in cross-section, means for passing strips of packets over the bar, and,

means for rotating the bar to. uniformly distribute the material contained in the packets.

In witness whereof I have; hereunto signed my name to this specification.

ADINO F. FILES.

s, two

the

the end of the lever 73 downward against the tension of the sprin 83 connected at one I end to the free end of t e arm 74 and at the other to a part of the frame 1 of the machine." 

